SUSHI (FSH Compiler)

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library 3.19.0 ·javascript
verified May 1, 2026

SUSHI (SUSHI Unshortens Short Hand Inputs) is a reference implementation compiler for FHIR Shorthand (FSH), a domain-specific language for defining FHIR Implementation Guides. Current stable version is 3.19.0, released with monthly cadence. Key differentiators: first-class support for FHIR R4/R4B/R5, dependency aliasing (since v3.16.0), multiline strings in invariants and mapping comments (v3.18.0), and integration with IG Publisher. Primarily used via CLI (`sushi build`). Ships TypeScript types.

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